diff --git a/components/select/style/index.less b/components/select/style/index.less
index 0c37cce423..59c17c2d79 100644
--- a/components/select/style/index.less
+++ b/components/select/style/index.less
@@ -530,7 +530,7 @@
         &,
         &:hover {
           color: @text-color;
-          font-weight: 600;
+          font-weight: @select-item-selected-font-weight;
           background-color: @background-color-light;
         }
       }
diff --git a/components/style/themes/default.less b/components/style/themes/default.less
index 9e2a40173b..b7c7e66e21 100644
--- a/components/style/themes/default.less
+++ b/components/style/themes/default.less
@@ -304,6 +304,7 @@
 // Select
 // ---
 @select-border-color: @border-color-base;
+@select-item-selected-font-weight: 600;
 
 // Tooltip
 // ---